The BD-05T30K is a compact brushless micro diaphragm vacuum pump designed for stable high-vacuum generation.
Using a reciprocating diaphragm to alternately create suction and discharge, it produces controlled negative pressure in a fully oil-free structure, delivering low noise, low leakage, and reliable long-term operation for integrated vacuum systems.
| Voltage | 24V |
|---|---|
| Max Flow | 25L/min |
| Max Vacuum | –99 kPa |
| Max Pressure | 2.5Bar |
| Motor | High-end brushless DC motor |
| Max Power | 50W |
| Weight | 1.8kg |
The BD-05T30K is an oil-free micro diaphragm vacuum pump that generates vacuum through the reciprocating motion of a flexible diaphragm, alternately expanding and compressing the chamber to draw in and evacuate gas. Optimized for low noise and stable operation, it achieves up to –99 kPa vacuum in series configuration, making it suitable for compact OEM systems requiring high negative pressure.
For applications prioritizing airflow, the parallel version BD-05T30KH delivers up to 50 L/min, offering a scalable diaphragm pump platform without changing the core structure.
✓ High negative pressure performance – Achieves up to –99 kPa vacuum, suitable for demanding vacuum extraction and sampling systems
✓ Oil-free & contamination-free – Dry-running diaphragm design prevents media pollution, ideal for sensitive applications
✓ Corrosion-resistant materials – PPS pump head with KEE/EPDM diaphragm ensures long service life in chemically active environments
✓ Low leakage design – Precision diaphragm and valve structure improves vacuum holding and system efficiency
✓ Cost-effective manufacturing – China-based production provides a strong cost advantage for OEM and volume projects
✓ Low noise & low vibration – Brushless DC motor with optimized dynamic balance ensures quiet and stable operation
| Parameter | Value |
|---|---|
| Model | BD-05T30K |
| Voltage Range | 24 V DC |
| Maximum Flow | 25 L/min |
| Max Negative Pressure | –99 kPa |
| Max Positive Pressure | 2.5 bar |
| Motor Type | High-end brushless DC motor |
| Max Power | 50 W |
| IP Rating | IP20 |
| Storage Temperature | –40 ℃ ~ 60 ℃ |
| Operating Temperature | –10 ℃ ~ 45 ℃ |
| Dimensions (L×W×H) | 173 × 70 × 104.5 mm |
| Weight | 1.8 kg |
| Component | Material / Performance |
|---|---|
| Pump Head | PPS (high chemical resistance) |
| Diaphragm / Valve | KEE / EPDM |
| Pump Body | Aluminum alloy |
📌 CEMS (Continuous Emission Monitoring Systems) – Diaphragm motion creates stable negative pressure for continuous, oil-free gas sampling.
📌 Analytical & Measurement Instruments – Low-leakage diaphragm structure ensures stable flow and accurate sampling results.
📌 Medical Devices – Oil-free diaphragm operation supports clean and controlled medical environments.
📌 Automated Extraction Systems – Diaphragm-driven vacuum provides reliable negative pressure for integrated automation.
📌 Robotic Suction & Pick-and-Place Systems – Fast diaphragm response delivers stable vacuum for suction cup handling.
| Customization Aspect | Available Options |
|---|---|
| Diaphragm / Valve Material | KEE, EPDM (other materials upon request) |
| Voltage | 24 V DC |
| Connector Type | Customized based on customer system requirements |
| Cable Length | Custom lengths available |
| Label / Branding | Based on the model provided by the customer |
| Mounting | Customized brackets or damping solutions |
Selecting a diaphragm pump supplier is not only about flow rates and vacuum levels—it’s about choosing a partner who can deliver consistent performance, customization, and long-term value. BODENFLO offers:
Cost-Effective Advantage – A reliable, lower-cost alternative to premium EU, US, and Japanese brands without compromising on performance.
Deep Expertise – Over 15 years dedicated to miniature diaphragm and piston pumps, with 600+ proven models and extensive OEM case studies worldwide.
Certified Quality – ISO9001, CE, and RoHS certified production backed by rigorous QC testing for flow, pressure, noise, and durability.
Tailored OEM Solutions – Diaphragm options in EPDM, PTFE, or FKM; custom cable and connector designs; private labeling; and multi-head configurations.
Engineering Partnership – CAD drawings, 3D models, prototyping, and consultation to reduce integration risks and accelerate your product launch.
Global Recognition – Trusted by OEMs across Europe, the US, Korea, and South America for medical, analytical, and industrial applications.
“Consistent vacuum output and smooth operation met our requirements for continuous monitoring equipment.”
– Environmental Monitoring System OEM, Germany
“Compact structure with reliable performance. Integration into our automated system was straightforward.”
– Industrial Automation Equipment Manufacturer, Japan
The BD-05T30K is driven by a brushless DC motor and adopts a multi-signal control interface, enabling precise speed regulation, feedback monitoring, and stable integration in OEM control systems.
| Wire Color | Signal Name | Function Description | Control / Integration Notes |
|---|---|---|---|
| Thick Red | Power + | DC power supply positive | Connect to rated DC voltage source |
| Thick Black | Power − | DC power supply negative | Power ground |
| Yellow | SP (Analog Speed) | Analog speed control input | Accepts analog speed reference signal |
| White | PWM | PWM speed control input | Recommended frequency: 1–10 kHz Motor starts when duty cycle > 10% |
| Blue | FG | Speed feedback output | Square-wave signal 12 pulses per revolution (4-pole BLDC motor) Supports real-time speed monitoring |
| Thin Black | GND | Signal ground | Common ground for control and feedback signals |
| Thin Red | 5V | Reference output | 5V output for external potentiometer or control circuit |
Control Architecture Notes
PWM and analog speed inputs allow flexible open-loop or closed-loop speed control
FG feedback enables real-time monitoring, speed verification, and load-adaptive control
Compatible with PLCs, MCUs, and standard motor controllers without external driver modules
[BD-05T30K Wiring Diagram & Speed Control Guide Download (PDF)]
[BD-05T30K Low Noise Vacuum Pump Download Datasheet (PDF)]
Q1｜What defines performance stability in a micro diaphragm pump?
Performance stability is determined by diaphragm motion consistency, valve sealing quality, motor torque control, and internal leakage management. A well-matched motor and chamber design ensures predictable vacuum and flow behavior under real operating loads, not just laboratory conditions.
Q2｜How should engineers evaluate diaphragm pumps beyond datasheet values?
Key evaluation factors include long-term pressure retention, flow repeatability under back pressure, thermal behavior in enclosed systems, and vibration transmission to surrounding components. System-level testing is often more important than peak specifications.
Q3｜What integration factors most commonly cause premature pump failure?
Restricted airflow, excessive back pressure, poor heat dissipation, and lack of inlet filtration are the most common causes. Proper mechanical mounting, ventilation clearance, and basic air filtration significantly extend service life.
Q4｜Why is motor control flexibility important for OEM platforms?
Speed-adjustable pumps allow OEMs to tune performance, noise, and power consumption at the system level. PWM or analog control also enables one pump platform to support multiple product variants without hardware redesign.
Q5｜When is a diaphragm pump the preferred architecture?
Diaphragm pumps are ideal when applications require oil-free operation, clean gas handling, low leakage, and moderate vacuum or pressure levels with minimal maintenance. They are especially suitable for analytical instruments, medical devices, environmental monitoring, and compact automation systems.
Looking for a reliable micro pump platform rather than a single off-the-shelf model?
BODENFLO supports OEMs and system integrators with scalable micro diaphragm and piston pump solutions, designed for compact size, high flow, stable vacuum or pressure, and long-term supply continuity.
What BODENFLO Delivers
Platform-based micro pump solutions (diaphragm & piston architectures)
600+ standard models covering wide flow, vacuum, and pressure ranges
Flexible customization of motors, control interfaces, connectors, and materials
Complete technical documentation (datasheets, wiring guides, CAD / STP files)
Fast prototyping and engineering samples (1–3 days)
Cost-effective manufacturing with stable quality and global delivery support
Whether you are developing a new device or optimizing an existing system, our engineering team works with you from application evaluation to mass production, reducing integration risk and shortening development cycles.
Email: info@bodenpump.com
Website: https://bodenpump.com
We will contact you within 8 hours, please pay attention to the email with the suffix “@bodenpump.com”.
